Lock



' LOCK M. BAHUN Filed Sept. 29, 1922 ATTORNEY.

.- l I I I l I I I I I June 30; 1925.

Patented June 30, 1925.

UNITED STATES 1,544,419 PATENT oFFice.

MARK 'IBAHUN, IRONWOQD, MICHIGAN.

Loon.

Application filed. September 29, 1922, Serial No. 591,299. Y

To all whom it may concern;

Be it known that I, Mann BAr UN, a citizen of Yugoslavia, residing at Ironwood, county of Gogebic, and State of Michigan,

have invented certain new and useful Iin ,and advantages thereof will become more fully known, as the description thereof proceeds, and will then be specifically pointed out in the appended claims.

In the accompanying drawing, forming a material part of this disclosure Figure 1 is a front view of the lock constructed according to my invention with the cover removed.

Figure 2 is an end view thereof.

Figure 3 is a trausversal section along line 33 of Figure 1.

Figure 4 shows a detail view of a key.

Figure 5 illustrates a locking member, and

Figure 6 is a detail View of one of the tumblers,

The lock comprises a casing 10 provided with a top plate 11, and having hinged thereto at one corner as at 12, an end plate 13 provided intermediate its'ends with a key hole 14'. of a peculiar configuration and near its lower end with a recess 15 for a purpose to be more fully described herebelow.

A plurality of tumbler bars 16 of a construction illustrated in Figure 6 is arranged within the casing for vertical movement, each of these bars has a recess 17 in its upper edge and a recess 18 in one of its side edges as shown in Figure 6. p j

The bars 16' are arranged in two laterally disposed rows as indicated in Figure 3, between spaced stationary frame bars-19 secured with their upper ends between plates 20 suitably arranged within casing 10, while their lower ends are movably held in alignment between a frame 21 provided with longitudinal slots 22 in which pins 23 of the frame bars travel. The frame 21 is laterally extended to project beyond the end walls of the casing and formed into a tri angular handle 24, while a spring 25 normally presses the handle towards the outside. The lower part of the frame 21 is in" the form of a plate 26 having spaced laterally projecting portions in the form of a grating. Below the plate 2 6 there is provided a looking member 27 formed in its upper surface with a plurality of depressions 28 shaped to receive-and more or less-accurately the lower ends of the tumblers 16. These depressions are formed by a plurality of shoulders o'r'abutments 2 9 upon which the lowerends of the frame bars 19 are adapted to rest. In the lower or'bottom part of the member 27 a recess 30 is providedand on one of its lateral faces an abutment lug 31 adapted to be engaged by a nose or projection 32 on the spindle 34 of a knob 35. As previ:

ously stated, the frame 24 through the 1nedi-* um of the spring 25is normally influenced in a direction toward the right in Fig. 1, and

with the tumblers-1,6 in lowered positions,

the grating bars of the plates 25 of the frame 21 engage in the recesses 18 of said tumblers. Thus the tumblers are normally locked in lowered position, in which position of course said tumblers engage inthejrecesses 28 of the locking bar 27.

The tumblers are adapted to be'operate'd' by a key 36 provided with a perforated handle 37 at one end and a plurality of upstanding marginal lugs or projections 38 on' its 'upper face, and a plurality of depending marginal lugs 39 on its lower face adapted to engage the corresponding recesses in the movable tumblers when the key is introduced'through the lower part of the corresponding shaped key-hole 40 in the end plate 41 of the look after having passed the keyhole 14 of plate 13. I

The end plate 13 in its recess15 is provided with a shoulder '42 adapted to snap over a shoulder 43 ofhandle- 24in the closed position of end plate 13.

In the recess .30 of member 27, a spring 1 1 is arrangechone end of which rests against an abutment or stop 45 on the lock frame.

The front part 46 of member 2'2 is connected to the member by means of a pin 47 Provided with a piston 48 sliding ina recess {l9 of themember, the rear end of which forms the keeper engaging locking bolt- 52,

The operation of the device is as follows In the initial operation of the lock, the

plate 13 is'swung into position indicated in dotted lines in Fig. 2, thus withdrawing the flange 42 of said plate 13, from the shoulder 43 of handle 24. The handle 24. is pushed inwardly, that is, toward the left in Fig. 1 to disengage the grating portions of the plates 26 from the recesses 18 of the tumblers. The key 36 is inserted into the lower portion of the keyhole 40, the blade of the key riding between the respective sets'of tumblers and the projections 38 and lugs 39 of said key seating in therespective recesses 17 of the tumblers- The key is now elevated lifting the tumblers free of the locking bar. As the tumblers are elevated, the spring 25 operates the plates 26 to the limit of movement permitted by the-slots 22, in which position the gratings of the plates 26 ride beneath the lower ends of the tumblers and prevent said tumblers moving into the recesses of the locking plate '27.

When now knob is turned, the engagement of its abutment 32 with the lug 31 will allow a displacement of the bolt 52 out of engagement with its keeper.

After release of the knob 35, spring 44 will shoot the bolt home again, and a pressure on handle 24, after the removal of key 36 from key hole 40. will slide plate 26 towards the left and allow the lower ends of tumblers 16 to fall into the recesses 28' of locking member 27. As the tumblers drop to lowered position, that is, with, theirlower ends in the recesses 28 of the locking-bar 27, the spring 25 will move the plates 26'toward the right in Fig. 1, w causing their grating portions to'enterthe recesses 18 in the tumblers, and the latter are quickly locked in their lower operative positions.

Having thus described my invention, what I claim, as new, and desire to secure by Letters Patent'of the United States i s+ 1. A look of the class described comprising a plurality of vertically displaceable tumblers, adapted to be raised by a key, a means for locking said tumblers in their lowered position in engagement with the bolt of the lock, said means also supporting said tumblers in their elevated position when the .lock is unlocked, and a member to permit manual operation of said means. 7

2. A look of the class described comprising a plurality of vertically movable, recessed tumblers, a frame for guiding said tumblers, a locking bolt provided with a plurality of depressions-for 'the reception of said tumblers'when the lock is locked,'a means for raising said tumblers, a movable supporting grating to support the ends of said tumblers when the lock is unlocked, said grating serving to lock the tumblers in operativeposi- 'tion, and means for operating said bolt'after the lifting of said tumblers.

3. A look comprising a plurality of verti cally movable tumblers, a locking bolt recessed toreceive the lower ends of the tumblers, agrating movable transverse the tumblers and adapted to underlie the lower ends of thetumblers when the latter are raised free of the locking bolt, said tumblers being recessed to receive the grating when the tumblers are in looking cooperation with the locking bolt, wherebyuto lock the tumblers against elevation. V 2

4. A look comprising a'plurality of vertically movable tumblers, a locking bolt in-,

dependently recessed ,to receive the lower".

of the tumblers when the latter are "raised free of the locking bolt, said tumblers being recessed to receive the grating whenthe tumblers are in looking cooperation with the locking bolt, whereby to lockth'e tumblers against elevation, and means to automatically influence the grating toward movement to lock the tumblersagainst operation, 4

6. A look including a locking bolt, 'a plurality of tumblers to cooperate with said bolt to lock the same against movement, a v

manually operative means to engage with' and lock said tumblersin bolt locking position, said means serving'when the tumblers are raised to cooperate with the tumblers to hold the same out of locking cooperation with. the bolt, and means for manually rais ing the tumblers.

7. A look including a locking bolt, a series of tumblers movable into locking cooperation with said bolt, a locking member to engage with 'said, tumblers to hold the tumblers in looking cooperation withtheI bolt, said locking member being manually operable to release the tumblers, means, for automatically moving the locking member to a position to support thetumblers outof locking cooperation with the bolt, and meansto operate the tumblers following initial operation of the locking member to move said locking cooperation with V tumblers free of the bolt. V y 1 V a 7 In testimony whereof I have aflixed my signature. Y I Y MARK'BIAHUN; 

